Post on 15-Mar-2018
LAN-1
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CAN
PRECAUTIONS .......................................................... 3Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-SIONER” .................................................................. 3Precautions When Using CONSULT-II ..................... 3
CHECK POINTS FOR USING CONSULT-II ......... 3Precautions for Trouble Diagnosis ........................... 3
CAN SYSTEM ....................................................... 3Precautions for Harness Repair ............................... 4
CAN SYSTEM ....................................................... 4TROUBLE DIAGNOSES WORK FLOW .................... 5
When Displaying CAN Communication System Errors ....................................................................... 5
WHEN A MALFUNCTION IS DETECTED BY CAN COMMUNICATION SYSTEM ....................... 5WHEN A MALFUNCTION IS DETECTED EXCEPT CAN COMMUNICATION SYSTEM ........ 5TROUBLE DIAGNOSIS FLOW CHART ............... 6
Diagnosis Procedure ................................................ 7SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE) ............................. 7ACQUISITION OF DATA BY CONSULT-II ............ 8HOW TO USE CHECK SHEET TABLE ................ 9
CAN Diagnostic Support Monitor ........................... 15DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ECM ............................... 15DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR TCM ............................... 16DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR DIFFERENTIAL LOCK CONTROL UNIT ................................................. 16DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR BCM ............................... 17DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR METER .......................... 18DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR TRANSFER CONTROL UNIT .................................................................... 19DESCRIPTION OF “CAN DIAG SUPPORT
MNTR” SCREEN FOR ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) ................... 20DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR IPDM E/R ....................... 21
CAN COMMUNICATION ........................................... 22System Description ................................................. 22Component Parts and Harness Connector Location ... 22Schematic ............................................................... 23Wiring Diagram — CAN — ..................................... 24CAN Communication Unit ....................................... 27
TYPE 1/TYPE 3 ................................................... 28TYPE 2/TYPE 5 ................................................... 30TYPE 4 ................................................................ 32TYPE 6/TYPE 7 ................................................... 33TYPE 8 ................................................................ 36TYPE 9/TYPE 10 ................................................. 37TYPE 11 .............................................................. 39TYPE 12/TYPE 13 ............................................... 41TYPE 14/TYPE 15 ............................................... 44
CAN SYSTEM (TYPE 1) ........................................... 47Component Parts and Harness Connector Location ... 47Schematic ............................................................... 47Wiring Diagram — CAN — ..................................... 47Check Sheet ........................................................... 48
CHECK SHEET RESULTS (EXAMPLE) ............. 50CAN SYSTEM (TYPE 2) ........................................... 58
Component Parts and Harness Connector Location ... 58Schematic ............................................................... 58Wiring Diagram — CAN — ..................................... 58Check Sheet ........................................................... 59
CHECK SHEET RESULTS (EXAMPLE) ............. 61CAN SYSTEM (TYPE 3) ........................................... 71
Component Parts and Harness Connector Location ... 71Schematic ............................................................... 71Wiring Diagram — CAN — ..................................... 71Check Sheet ........................................................... 72
CHECK SHEET RESULTS (EXAMPLE) ............. 74CAN SYSTEM (TYPE 4) ........................................... 82
Component Parts and Harness Connector Location ... 82Schematic ............................................................... 82
LAN-2Revision: September 2005 2006 Frontier
Wiring Diagram — CAN — ..................................... 82Check Sheet ........................................................... 83
CHECK SHEET RESULTS (EXAMPLE) ............. 85CAN SYSTEM (TYPE 5) ........................................... 93
Component Parts and Harness Connector Location ... 93Schematic ............................................................... 93Wiring Diagram — CAN — ..................................... 93Check Sheet ........................................................... 94
CHECK SHEET RESULTS (EXAMPLE) ............. 96CAN SYSTEM (TYPE 6) ......................................... 106
Component Parts and Harness Connector Location . 106Schematic ............................................................. 106Wiring Diagram — CAN — ................................... 106Check Sheet ......................................................... 107
CHECK SHEET RESULTS (EXAMPLE) ........... 109CAN SYSTEM (TYPE 7) ......................................... 119
Component Parts and Harness Connector Location . 119Schematic ............................................................. 119Wiring Diagram — CAN — ................................... 119Check Sheet ......................................................... 120
CHECK SHEET RESULTS (EXAMPLE) ........... 122CAN SYSTEM (TYPE 8) ......................................... 133
Component Parts and Harness Connector Location . 133Schematic ............................................................. 133Wiring Diagram — CAN — ................................... 133Check Sheet ......................................................... 134
CHECK SHEET RESULTS (EXAMPLE) ........... 136CAN SYSTEM (TYPE 9) ......................................... 145
Component Parts and Harness Connector Location . 145Schematic ............................................................. 145Wiring Diagram — CAN — ................................... 145Check Sheet ......................................................... 146
CHECK SHEET RESULTS (EXAMPLE) ........... 148CAN SYSTEM (TYPE 10) ....................................... 157
Component Parts and Harness Connector Location . 157Schematic ............................................................. 157Wiring Diagram — CAN — ................................... 157Check Sheet ......................................................... 158
CHECK SHEET RESULTS (EXAMPLE) ........... 160CAN SYSTEM (TYPE 11) ........................................ 170
Component Parts and Harness Connector Location . 170Schematic ............................................................. 170Wiring Diagram — CAN — ................................... 170Check Sheet ......................................................... 171
CHECK SHEET RESULTS (EXAMPLE) ........... 173
CAN SYSTEM (TYPE 12) ........................................184Component Parts and Harness Connector Location .184Schematic .............................................................184Wiring Diagram — CAN — ...................................184Check Sheet .........................................................185
CHECK SHEET RESULTS (EXAMPLE) ............187CAN SYSTEM (TYPE 13) ........................................198
Component Parts and Harness Connector Location .198Schematic .............................................................198Wiring Diagram — CAN — ...................................198Check Sheet .........................................................199
CHECK SHEET RESULTS (EXAMPLE) ............201CAN SYSTEM (TYPE 14) ........................................213
Component Parts and Harness Connector Location .213Schematic .............................................................213Wiring Diagram — CAN — ...................................213Check Sheet .........................................................214
CHECK SHEET RESULTS (EXAMPLE) ............216CAN SYSTEM (TYPE 15) ........................................228
Component Parts and Harness Connector Location .228Schematic .............................................................228Wiring Diagram — CAN — ...................................228Check Sheet .........................................................229
CHECK SHEET RESULTS (EXAMPLE) ............231TROUBLE DIAGNOSIS FOR SYSTEM ..................244
Inspection Between TCM and Data Link Connector Circuit ....................................................................244Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit ....245ECM Circuit Inspection .........................................246TCM Circuit Inspection ..........................................247Differential Lock Control Unit Circuit Inspection ....247Steering Angle Sensor Circuit Inspection ..............248Data Link Connector Circuit Inspection .................248BCM Circuit Inspection .........................................249Combination Meter Circuit Inspection ...................249Transfer Control Unit Circuit Inspection ................250ABS Actuator and Electric Unit (Control Unit) Circuit Inspection ..............................................................250IPDM E/R Circuit Inspection .................................251CAN Communication Circuit Inspection ................251IPDM E/R Ignition Relay Circuit Inspection ...........252
PRECAUTIONS
LAN-3
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PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER” UKS003L0
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used alongwith a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certaintypes of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRSsystem uses the seat belt switches to determine the front air bag deployment, and may only deploy one frontair bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.Information necessary to service the system safely is included in the SRS and SB section of this Service Man-ual.WARNING: To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and AirBag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in thisService Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses orharness connectors.
Precautions When Using CONSULT-II UKS003L1
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.CAUTION:If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might bedetected in self-diagnosis depending on control unit which carry out CAN communication.
CHECK POINTS FOR USING CONSULT-II1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?– If YES, GO TO 2.– If NO, GO TO 5.2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?– If YES, GO TO 3.– If NO, GO TO 4.3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefore, erase the self-diagnosis results.5. Diagnose CAN communication system. Refer to LAN-5, "TROUBLE DIAGNOSES WORK FLOW" .
Precautions for Trouble Diagnosis UKS003L2
CAN SYSTEM Do not apply voltage of 7.0 V or higher to the measurement terminals. Use the tester with its open terminal voltage being 7.0 V or less. Be sure to turn ignition switch OFF and disconnect the battery cable from the negative terminal before
checking the circuit.
LAN-4
[CAN]PRECAUTIONS
Revision: September 2005 2006 Frontier
Precautions for Harness Repair UKS003L3
CAN SYSTEM Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in).]
Do not perform bypass wire connections for the repair parts.(The spliced wire will become separated and the characteristicsof twisted line will be lost.)
PKIA0306E
PKIA0307E
TROUBLE DIAGNOSES WORK FLOW
LAN-5
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TROUBLE DIAGNOSES WORK FLOW PFP:00004
When Displaying CAN Communication System Errors UKS003L4
WHEN A MALFUNCTION IS DETECTED BY CAN COMMUNICATION SYSTEM CAN communication line is open. (CAN H, CAN L, or both) CAN communication line is shorted. (Ground, between CAN lines, or other harnesses) The areas related to CAN communication of unit is malfunctioning.
WHEN A MALFUNCTION IS DETECTED EXCEPT CAN COMMUNICATION SYSTEM Removal and installation of parts: When the units that perform CAN communication or the sensors related
to CAN communication are removed and installed, malfunction may be detected (or DTC other than CANcommunication may be detected).
Fuse blown out (removed): CAN communication of the unit may be stopped at such time. Low voltage: If the voltage decreases because of battery discharge when IGN is ON, malfunction may be
detected by self-diagnosis according to the units.
LAN-6
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
TROUBLE DIAGNOSIS FLOW CHARTDepending on the control unit which performs CAN communication, “U1010” may be indicated as the result ofself-diagnosis. Replace the control unit if “U1010” is indicated.
Step 1: Refer to LAN-7, "SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE)" . Step 2: Refer to LAN-8, "ACQUISITION OF DATA BY CONSULT-II" . Step 3: Refer to LAN-9, "HOW TO USE CHECK SHEET TABLE" . Step 4: Refer to LAN-10, "Example of Filling in Check Sheet When Initial Conditions Are Reproduced" . Step 5: Refer to LAN-244, "TROUBLE DIAGNOSIS FOR SYSTEM" .
PKIC5988E
TROUBLE DIAGNOSES WORK FLOW
LAN-7
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Diagnosis Procedure UKS003L5
SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE)Determine CAN system type from the equipment of the vehicle to select applicable check sheet.
PKIB6530E
LAN-8
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
ACQUISITION OF DATA BY CONSULT-IIAttach the data acquired by CONSULT-II on the check sheet determined according to CAN system type.
PKIC5990E
TROUBLE DIAGNOSES WORK FLOW
LAN-9
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HOW TO USE CHECK SHEET TABLE
1. Unit names displayed on CONSULT-II.2. “No indication”: Put a check mark to it if the unit name described in step 1 is not displayed on “SELECT
SYSTEM” screen of CONSULT-II. (Unit communicating with CONSULT-II via CAN communication line)“–”: Column not used (Unit communicating with CONSULT-II excluding CAN communication line)
3. “NG”: Display “NG” when malfunction is detected in the initial diagnosis of the diagnosed unit. Replace theunit if “NG” is displayed.“–”: Column not used (Initial diagnosis is not performed.)
4. “UNKWN”: Display “UNKWN” when the diagnosed unit does not transmit the data normally. Put a checkmark to it if “UNKWN” is displayed on CONSULT-II.
5. “UNKWN”: Display “UNKWN” when the diagnosed unit does not receive the data normally. Put a checkmark to it if “UNKWN” is displayed on CONSULT-II.“–”: Column not used (It is not necessary for CAN communication trouble diagnosis.)
NOTE:CAN communication diagnosis checks if CAN communication works normally. (Contents of data are not diag-nosed.) When the initial conditions are reproduced, refer to LAN-10, "Example of Filling in Check Sheet When Ini-
tial Conditions Are Reproduced" . When the initial conditions are not reproduced, refer to LAN-13, "Example of Filling in Check Sheet When
Initial Conditions Are Not Reproduced" .
PKIC5991E
LAN-10
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
Example of Filling in Check Sheet When Initial Conditions Are Reproduced
1. Put a check mark to “No indication” if some of unit names listed on the column of diagnosis system selec-tion screen of a check sheet table are not displayed on “SELECT SYSTEM” screen attached to the checksheet.NOTE:Put a check mark to “No indication” of BCM because BCM is not displayed on “SELECT SYSTEM”screen.
2. Confirm the unit name that “UNKWN” is displayed from the copy of “CAN DIAG SUPPORT MNTR” screenof “ENGINE” attached to the check sheet, and then put a check mark to the check sheet table.NOTE:In “CAN DIAG SUPPORT MNTR” screen, “UNKWN” is displayed on “BCM/SEC”. Put a check mark to it.
PKIC5992E
TROUBLE DIAGNOSES WORK FLOW
LAN-11
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3. Confirm the unit name that “UNKWN” is displayed on the copy of “CAN DIAG SUPPORT MNTR” screenof “A/T”, “METER”, “ALL MODE AWD/4WD”, “ABS” and “IPDM E/R” as well as “ENGINE”. And then, put acheck mark to the check sheet table.NOTE: For “A/T”, “UNKWN” is displayed on “ICC/e4WD”. But, do not put a check mark to their columns of
reception diagnosis of the check sheet table because “UNKWN” is not listed. For “METER”, “UNKWN” is displayed on “BCM/SEC”. Put a check mark to it. For “ALL MODE AWD/4WD”, “UNKWN” is not displayed“. Do not put a check mark to it. For “ABS”, “UNKWN” is displayed on “METER/M&A” and “ICC”. But, do not put a check mark to their
columns of reception diagnosis of the check sheet table because “UNKWN” is not listed. For “IPDM E/R”, “UNKWN” is displayed on “BCM/SEC”. Put a check mark to it.
PKIC5993E
LAN-12
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
NOTE:There is a case that some of “CAN DIAG SUPPORT MNTR” and “SELF-DIAG RESULTS” are not needed fordiagnosis. In the case, “UNKWN” and “CAN COMM CIRCUIT [U1000]” in “Check sheet results (example)”change to “–”. Then, ignore check marks on the check sheet table.4. Perform system diagnosis for possible causes identified.5. Perform diagnosis again after inspection and repair. Make sure that repair is completely performed, and
then end the procedure.Start CAN system trouble diagnosis if this procedure can be confirmed. Refer to LAN-27, "CAN Communica-tion Unit" .
PKIC5994E
TROUBLE DIAGNOSES WORK FLOW
LAN-13
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Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced
1. See “SELF-DIAG RESULTS” of all units attached to the check sheet. If “CAN COMM CIRCUIT”, “CANCOMM CIRCUIT [U1000]” or “CAN COMM CIRCUIT [U1001]” is displayed, put a check mark to the appli-cable column of self-diagnostic results of the check sheet table.NOTE: For “ENGINE”, “CAN COMM CIRCUIT [U1001]” is displayed. Put a check mark to it. For “A/T”, “NO DTC IS DETECTED” is displayed. Do not put a check mark to it. For “BCM”, “NO DTC IS DETECTED” is displayed. Do not put a check mark to it. For “METER”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it. For “ALL MODE AWD/4WD”, “NO DTC IS DETECTED” is displayed. Do not put a check mark to it. For “ABS”, “NO DTC IS DETECTED” is displayed. Do not put a check mark to it. For “IPDM E/R”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.
PKIC5995E
LAN-14
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
NOTE:There is a case that some of “CAN DIAG SUPPORT MNTR” and “SELF-DIAG RESULTS” are not needed fordiagnosis. In the case, “UNKWN” and “CAN COMM CIRCUIT [U1000]” in “Check sheet results (example)”change to “–”. Then, ignore check marks on the check sheet table.2. For the selected possible causes, it is expected that malfunctions have been found in the past.
PKIC5996E
TROUBLE DIAGNOSES WORK FLOW
LAN-15
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CAN Diagnostic Support Monitor UKS003L6
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ECM
Display Results (Present)
OK: Normal
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)
OK: Normal
0: There is malfunction now.
1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0→1→2...38→39 after returning to thenormal condition whenever IGN OFF→ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0when malfunction is detected again in the process.
–: Undiagnosed
PKIC5987E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present Past
ENGINE
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1 – 39/–
VDC/TCS/ABS
Make sure of normal reception from ABS actua-tor and electric unit (control unit). (VDC model/ ABLS model)
OK/UNKWN/–
VDC/TCS/ABS is not diagnosed. (ABS model) –
METER/M&AMake sure of normal reception from combination meter.
OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–
ICC ICC is not diagnosed. –
HVAC HVAC is not diagnosed. –
TCM Make sure of normal reception from TCM. OK/UNKWN/–
EPS EPS is not diagnosed. –
IPDM E/R Make sure of normal reception from IPDM E/R. OK/UNKWN/–
e4WD e4WD is not diagnosed. –
AWD/4WDMake sure of normal reception from transfer con-trol unit.
OK/UNKWN/–
LAN-16
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR TCM
Display Results (Present)
OK: Normal
NG: Malfunction
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR DIFFERENTIAL LOCK CONTROL UNIT
Display Results (Present)
OK: Normal
NG: Malfunction
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
SKIB2335E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present
A/T
INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
VDC/TCS/ABS
Make sure of normal reception from ABS actuator and electric unit (control unit). (VDC model/ ABLS model)
OK/UNKWN
VDC/TCS/ABS is not diagnosed. (ABS model) UNKWN
METER/M&A Make sure of normal reception from combination meter. OK/UNKWN
ICC/e4WD ICC/e4WD is not diagnosed. UNKWN
AWD/4WD Make sure of normal reception from transfer control unit. OK/UNKWN
PKIB7196E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present
DIFF LOCK
INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
VDC/TCS/ABSMake sure of normal reception from ABS actuator and electric unit (control unit).
OK/UNKWN
AWD/4WD Make sure of normal reception from transfer control unit. OK/UNKWN
TROUBLE DIAGNOSES WORK FLOW
LAN-17
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DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR BCM
Display Results (Present)
OK: Normal
NG: Malfunction
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
SKIB1625E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present
BCM
INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
IPDM E/R Make sure of normal reception from IPDM E/R. OK/UNKWN
METER/M&A Make sure of normal reception from combination meter. OK/UNKWN
I-KEY I-KEY is not diagnosed. OK
LAN-18
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR METER
Display Results (Present)
OK: Normal
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)
OK: Normal
0: There is malfunction now.
1 – 39: Displays when it finds malfunction in the past even if it is normal or there is a malfunction at present. Also, displays when diag-nosis is not performed. It increase like 0→1→2...38→39 after returning to the normal condition whenever IGN OFF→ON. If it is over39, it is fixed to 39 until the self-diagnostic results are erased. Keep this condition until resetting it.
–: Undiagnosed
PKIC6816E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present Past
METER
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1 – 39/–
ECM Make sure of normal reception from ECM. OK/UNKWN/–
TCM Make sure of normal reception from TCM. OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–
VDC/TCS/ABSMake sure of normal reception from ABS actua-tor and electric unit (control unit).
OK/UNKWN/–
IPDM E/R Make sure of normal reception from IPDM E/R. OK/UNKWN/–
DISPLAY DISPLAY is not diagnosed. –
I-KEY I-KEY is not diagnosed. –
EPS EPS is not diagnosed. –
AWD/4WD AWD/4WD is not diagnosed. –
e4WD e4WD is not diagnosed. –
ICC ICC is not diagnosed. –
LANE KEEP LANE KEEP is not diagnosed. –
TIRE-P TIRE-P is not diagnosed. –
TROUBLE DIAGNOSES WORK FLOW
LAN-19
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DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR TRANSFER CONTROL UNIT
Display Results (Present)
OK: Normal
NG: Malfunction
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
PKIC2594E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present
ALL MODE AWD/4WD
INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
VDC/TCS/ABSMake sure of normal reception from ABS actuator and electric unit (control unit).
OK/UNKWN
TCM Make sure of normal reception from TCM. OK/UNKWN
METER/M&A Make sure of normal reception from combination meter. OK/UNKWN
LAN-20
[CAN]TROUBLE DIAGNOSES WORK FLOW
Revision: September 2005 2006 Frontier
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ABS ACTUATOR AND ELEC-TRIC UNIT (CONTROL UNIT)ABS model
Display Results (Present)
OK: Normal
NG: Malfunction
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
VDC model/ABLS model
Display Results (Present)
OK: Normal
NG: Malfunction
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
PKIA8949E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present
ABS
INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
PKIB7433E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present
ABS
INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
TCM Make sure of normal reception from TCM. OK/UNKWN
METER/M&A METER/M&A is not diagnosed. UNKWN
STRG
Make sure of normal reception from steering angle sensor. (VDC model)
OK/UNKWN
STRG is not diagnosed. (ABLS model) UNKWN
ICC ICC is not diagnosed. UNKWN
AWD/4WD Make sure of normal reception from transfer control unit. OK/UNKWN
DIFF LOCK Make sure of normal reception from differential lock control unit. OK/UNKWN
TROUBLE DIAGNOSES WORK FLOW
LAN-21
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DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR IPDM E/R
Display Results (Present)
OK: Normal
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)
OK: Normal
0: There is malfunction now.
1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0→1→2...38→39 after returning to thenormal condition whenever IGN OFF→ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0when malfunction is detected again in the process.
–: Undiagnosed
SKIB0595E
“SELECT SYSTEM” screen
“CAN DIAG SUPPORT MNTR” screen
Description Present Past
IPDM E/R
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1 – 39/–ECM Make sure of normal reception from ECM. OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–
LAN-22
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
CAN COMMUNICATION PFP:23710
System Description UKS0030X
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-tiplex communication line with high data communication speed and excellent error detection ability. Many elec-tronic control units are equipped onto a vehicle, and each control unit shares information and links with othercontrol units during operation (not independent). In CAN communication, control units are connected with 2communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.Each control unit transmits/receives data but selectively reads required data only.
Component Parts and Harness Connector Location UKS0052Z
1. IPDM E/R E122 2. ECM E16 3. Combination meter M24
4. BCM M18 5. ABS actuator and electric unit (con-trol unit) E125
6. Transfer control unit M152 (with 4-wheel drive)
7. Differential lock control unit M70 (with electronic locking rear differen-tial)
8. Data link connector M22 9. Steering angle sensor M47 (with VDC)
10. Air bag diagnosis sensor unit M35 11. A/T assembly F9 (with A/T)
BKIA0200E
CAN COMMUNICATION
LAN-23
[CAN]
C
D
E
F
G
H
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J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Schematic UKS00530
BKWA0667E
LAN-24
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
Wiring Diagram — CAN — UKS00531
BKWA0668E
CAN COMMUNICATION
LAN-25
[CAN]
C
D
E
F
G
H
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L
M
A
B
LAN
Revision: September 2005 2006 Frontier
BKWA0669E
LAN-26
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
BKWA0670E
CAN COMMUNICATION
LAN-27
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN Communication Unit UKS003GN
Go to CAN system, when selecting your CAN system type from the following table.
×: Applicable
NOTE:Confirming the presence of the following items helps to identify CAN system type. Models with 4WD
Models with VDC
Models with ABLS
Body type Truck
Axle 2WD 4WD
Engine QR25DE VQ40DE
Transmission M/T A/T M/T A/T M/T A/T
Brake control ABS ABSABL
SABS ABLS ABS ABLS ABS ABLS VDC
Electronic locking rear differential
× × × ×
CAN system type 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CAN system trouble diagnosis
LAN-47
LAN-58
LAN-71
LAN-82
LAN-93
LAN-106
LAN-119
LAN-133
LAN-145
LAN-157
LAN-170
LAN-184
LAN-198
LAN-213
LAN-228
BKIA0201E
BKIA0202E
BKIA0174E
LAN-28
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
Models with electronic locking rear differential
TYPE 1/TYPE 3System diagram Type 1
Type 3
Input/output signal chartT: Transmit R: Receive
BKIA0203E
PKIC4983E
PKIC4983E
Signals ECM BCMCombination
meter
ABS actuator and electric unit
(control unit)IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T
CAN COMMUNICATION
LAN-29
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
*: VQ engine models only.
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan speed request signal* T R
Engine coolant temperature signal T R
Engine speed signal T R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
Fuel level sensor signal R T
Seat belt buckle switch signal R T
Vehicle speed signalR T
R R T
ABS warning lamp signal R T
Brake warning lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal* R T
Signals ECM BCMCombination
meter
ABS actuator and electric unit
(control unit)IPDM E/R
LAN-30
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
TYPE 2/TYPE 5System diagram Type 2
Type 5
Input/output signal chartT: Transmit R: Receive
PKIC4985E
PKIC4985E
Signals ECM TCM BCMCombination
meter
ABS actua-tor and elec-
tric unit (control unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R
ASCD CRUISE lamp signal T R
ASCD OD cancel request T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
CAN COMMUNICATION
LAN-31
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
*: VQ engine models only.
Engine speed signal T R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R
A/T self-diagnosis signal R T
O/D OFF indicator signal T R
Output shaft revolution signal R T
Turbine revolution signal R T
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
1st position switch signal R T
Fuel level sensor signal R T
Overdrive control switch signal R T
Seat belt buckle switch signal R T
Stop lamp switch signal R T
Vehicle speed signalR T
R R R T
ABS warning lamp signal R T
Brake warning lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal* R T
Signals ECM TCM BCMCombination
meter
ABS actua-tor and elec-
tric unit (control unit)
IPDM E/R
LAN-32
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 4System diagram Type 4
Input/output signal chartT: Transmit R: Receive
PKIC4983E
Signals ECM BCMCombination
meter
ABS actuator and electric unit
(control unit)IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
CAN COMMUNICATION
LAN-33
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 6/TYPE 7System diagram Type 6
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
Fuel level sensor signal R T
Seat belt buckle switch signal R T
Vehicle speed signalR T
R R T
ABS warning lamp signal R T
Brake warning lamp signal R T
SLIP indicator lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECM BCMCombination
meter
ABS actuator and electric unit
(control unit)IPDM E/R
PKIC4985E
LAN-34
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
Type 7
Input/output signal chartT: Transmit R: Receive
PKIC4993E
Signals ECM TCMDifferential lock con-
trol unit*BCM
Combina-tion meter
ABS actua-tor and
electric unit (control
unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R R
A/T self-diagnosis signal R T
O/D OFF indicator signal T R
Output shaft revolution signal R T
Turbine revolution signal R T
Differential lock indicator signal T R
Differential lock switch signal T R
A/C switch signal R T
CAN COMMUNICATION
LAN-35
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
*: with electronic locking rear differential model only.
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
1st position switch signal R T
Fuel level sensor signal R T
Overdrive control switch signal R T
Seat belt buckle switch signal R T
Stop lamp switch signal R T
Vehicle speed signalR R T
R R R T
ABS warning lamp signal R T
Brake warning lamp signal R T
SLIP indicator lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECM TCMDifferential lock con-
trol unit*BCM
Combina-tion meter
ABS actua-tor and
electric unit (control
unit)
IPDM E/R
LAN-36
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
TYPE 8System diagram Type 8
Input/output signal chartT: Transmit R: Receive
PKIC4987E
Signals ECM BCMCombination
meterTransfer con-
trol unit
ABS actua-tor and elec-
tric unit (control unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
CAN COMMUNICATION
LAN-37
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 9/TYPE 10System diagram Type 9
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
Fuel level sensor signal R T
Seat belt buckle switch signal R T
Vehicle speed signalR R T
R R T
ABS warning lamp signal R T
Brake warning lamp signal R T
Stop lamp switch signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECM BCMCombination
meterTransfer con-
trol unit
ABS actua-tor and elec-
tric unit (control unit)
IPDM E/R
PKIC4987E
LAN-38
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
Type 10
Input/output signal chartT: Transmit R: Receive
PKIC4994E
Signals ECMDifferential lock con-
trol unit*BCM
Combina-tion meter
Transfer control unit
ABS actua-tor and
electric unit (control
unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
Differential lock indicator signal T R
Differential lock switch signal T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
CAN COMMUNICATION
LAN-39
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
*: with electronic locking rear differential model only.
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 11System diagram Type 11
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
Fuel level sensor signal R T
Seat belt buckle switch signal R T
Vehicle speed signalR R R T
R R T
4WD shift switch signal R T
ABS warning lamp signal R T
Brake warning lamp signal R T
SLIP indicator lamp signal R T
Stop lamp switch signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECMDifferential lock con-
trol unit*BCM
Combina-tion meter
Transfer control unit
ABS actua-tor and
electric unit (control
unit)
IPDM E/R
PKIC4990E
LAN-40
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
Input/output signal chartT: Transmit R: Receive
Signals ECM TCM BCMCombina-tion meter
Transfer control unit
ABS actua-tor and
electric unit (control
unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R
ASCD CRUISE lamp signal T R
ASCD OD cancel request T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R R
A/T self-diagnosis signal R T
O/D OFF indicator signal T R
Output shaft revolution signal R T R
Turbine revolution signal R T
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
1st position switch signal R T
CAN COMMUNICATION
LAN-41
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 12/TYPE 13System diagram Type 12
Fuel level sensor signal R T
Overdrive control switch signal R T
Seat belt buckle switch signal R T
Stop lamp switch signalR T
R T
Vehicle speed signalR R T
R R R T
ABS warning lamp signal R T
Brake warning lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECM TCM BCMCombina-tion meter
Transfer control unit
ABS actua-tor and
electric unit (control
unit)
IPDM E/R
PKIC4990E
LAN-42
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
Type 13
Input/output signal chartT: Transmit R: Receive
PKIC4995E
Signals ECM TCM
Differen-tial lock control
unit*
BCMCombina-
tion meter
Transfer control
unit
ABS actuator and elec-tric unit (control
unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R R
A/T self-diagnosis signal R T
O/D OFF indicator signal T R
Output shaft revolution signal R T R
Turbine revolution signal R T
Differential lock indicator signal T R
Differential lock switch signal T R
CAN COMMUNICATION
LAN-43
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
*: with electronic locking rear differential model only.
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
1st position switch signal R T
Fuel level sensor signal R T
Overdrive control switch signal R T
Seat belt buckle switch signal R T
Stop lamp switch signalR T
R T
Vehicle speed signalR R R T
R R R T
4WD shift switch signal R T
ABS warning lamp signal R T
Brake warning lamp signal R T
SLIP indicator lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECM TCM
Differen-tial lock control
unit*
BCMCombina-
tion meter
Transfer control
unit
ABS actuator and elec-tric unit (control
unit)
IPDM E/R
LAN-44
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
TYPE 14/TYPE 15System diagram Type 14
Type 15
Input/output signal chartT: Transmit R: Receive
PKIC4991E
PKIC4992E
Signals ECM TCM
Differ-ential lock
control
unit*
Steer-ing
angle sensor
BCMCombi-nation meter
Trans-fer con-trol unit
ABS actua-tor and electric
unit (control
unit)
IPDM E/R
A/C compressor request signal T R
Accelerator pedal position signal T R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
CAN COMMUNICATION
LAN-45
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Power generation command value signal
T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R R R
A/T self-diagnosis signal R T
O/D OFF indicator signal T R
Output shaft revolution signal R T R
Turbine revolution signal R T
Differential lock indicator signal T R
Differential lock switch signal T R
Steering angle sensor signal T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Day time running light request signal T R R
Door switch signal T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Turn indicator signal T R
1st position switch signal R T
Fuel level sensor signal R T
Overdrive control switch signal R T
Seat belt buckle switch signal R T
Stop lamp switch signalR T
R T
Signals ECM TCM
Differ-ential lock
control
unit*
Steer-ing
angle sensor
BCMCombi-nation meter
Trans-fer con-trol unit
ABS actua-tor and electric
unit (control
unit)
IPDM E/R
LAN-46
[CAN]CAN COMMUNICATION
Revision: September 2005 2006 Frontier
*: with electronic locking rear differential model only.
NOTE:CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Vehicle speed signalR R R T
R R R T
4WD shift switch signal R T
ABS warning lamp signal R T
Brake warning lamp signal R T
HDC indicator lamp signal R T
SLIP indicator lamp signal R T
VDC OFF indicator lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R T
Signals ECM TCM
Differ-ential lock
control
unit*
Steer-ing
angle sensor
BCMCombi-nation meter
Trans-fer con-trol unit
ABS actua-tor and electric
unit (control
unit)
IPDM E/R
CAN SYSTEM (TYPE 1)
LAN-47
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 1) PFP:23710
Component Parts and Harness Connector Location UKS0054M
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0054N
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0054O
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-48
[CAN]CAN SYSTEM (TYPE 1)
Revision: September 2005 2006 Frontier
Check Sheet UKS0054P
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5742E
CAN SYSTEM (TYPE 1)
LAN-49
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7068E
LAN-50
[CAN]CAN SYSTEM (TYPE 1)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5743E
PKIC5501E
CAN SYSTEM (TYPE 1)
LAN-51
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5744E
PKIC5502E
LAN-52
[CAN]CAN SYSTEM (TYPE 1)
Revision: September 2005 2006 Frontier
Case 3Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5745E
PKIC5503E
CAN SYSTEM (TYPE 1)
LAN-53
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5746E
PKIC5504E
LAN-54
[CAN]CAN SYSTEM (TYPE 1)
Revision: September 2005 2006 Frontier
Case 5Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5747E
PKIC5505E
CAN SYSTEM (TYPE 1)
LAN-55
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5748E
PKIC5506E
LAN-56
[CAN]CAN SYSTEM (TYPE 1)
Revision: September 2005 2006 Frontier
Case 7Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 8Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5749E
PKIC5507E
PKIC5750E
CAN SYSTEM (TYPE 1)
LAN-57
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 10Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5751E
PKIC5752E
LAN-58
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 2) PFP:23710
Component Parts and Harness Connector Location UKS0054Q
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0054R
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0054S
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 2)
LAN-59
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS0054T
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5765E
LAN-60
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
PKIC7064E
CAN SYSTEM (TYPE 2)
LAN-61
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5766E
PKIC5516E
LAN-62
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5767E
PKIC5517E
CAN SYSTEM (TYPE 2)
LAN-63
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5768E
PKIC5518E
LAN-64
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5769E
PKIC5519E
CAN SYSTEM (TYPE 2)
LAN-65
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5770E
PKIC5520E
LAN-66
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
Case 6Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5771E
PKIC5521E
CAN SYSTEM (TYPE 2)
LAN-67
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5772E
PKIC5522E
LAN-68
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
Case 8Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5773E
PKIC5523E
CAN SYSTEM (TYPE 2)
LAN-69
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 10Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5774E
PKIC5524E
PKIC5775E
LAN-70
[CAN]CAN SYSTEM (TYPE 2)
Revision: September 2005 2006 Frontier
Case 11Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 12Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5776E
PKIC5777E
CAN SYSTEM (TYPE 3)
LAN-71
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 3) PFP:23710
Component Parts and Harness Connector Location UKS0054U
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0054V
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0054W
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-72
[CAN]CAN SYSTEM (TYPE 3)
Revision: September 2005 2006 Frontier
Check Sheet UKS0054X
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5742E
CAN SYSTEM (TYPE 3)
LAN-73
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7068E
LAN-74
[CAN]CAN SYSTEM (TYPE 3)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5743E
PKIC5501E
CAN SYSTEM (TYPE 3)
LAN-75
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5744E
PKIC5502E
LAN-76
[CAN]CAN SYSTEM (TYPE 3)
Revision: September 2005 2006 Frontier
Case 3Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5745E
PKIC5503E
CAN SYSTEM (TYPE 3)
LAN-77
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5746E
PKIC5504E
LAN-78
[CAN]CAN SYSTEM (TYPE 3)
Revision: September 2005 2006 Frontier
Case 5Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5747E
PKIC5505E
CAN SYSTEM (TYPE 3)
LAN-79
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5748E
PKIC5506E
LAN-80
[CAN]CAN SYSTEM (TYPE 3)
Revision: September 2005 2006 Frontier
Case 7Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 8Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5749E
PKIC5507E
PKIC5750E
CAN SYSTEM (TYPE 3)
LAN-81
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 10Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5751E
PKIC5752E
LAN-82
[CAN]CAN SYSTEM (TYPE 4)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 4) PFP:23710
Component Parts and Harness Connector Location UKS0054Y
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0054Z
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS00550
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 4)
LAN-83
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS00551
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5873E
LAN-84
[CAN]CAN SYSTEM (TYPE 4)
Revision: September 2005 2006 Frontier
PKIC7068E
CAN SYSTEM (TYPE 4)
LAN-85
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5874E
PKIC5501E
LAN-86
[CAN]CAN SYSTEM (TYPE 4)
Revision: September 2005 2006 Frontier
Case 2Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5875E
PKIC5502E
CAN SYSTEM (TYPE 4)
LAN-87
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5876E
PKIC5503E
LAN-88
[CAN]CAN SYSTEM (TYPE 4)
Revision: September 2005 2006 Frontier
Case 4Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5877E
PKIC5504E
CAN SYSTEM (TYPE 4)
LAN-89
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5878E
PKIC5505E
LAN-90
[CAN]CAN SYSTEM (TYPE 4)
Revision: September 2005 2006 Frontier
Case 6Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5879E
PKIC5506E
CAN SYSTEM (TYPE 4)
LAN-91
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 8Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5880E
PKIC5507E
PKIC5881E
LAN-92
[CAN]CAN SYSTEM (TYPE 4)
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 10Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5882E
PKIC5883E
CAN SYSTEM (TYPE 5)
LAN-93
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 5) PFP:23710
Component Parts and Harness Connector Location UKS00552
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS00553
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS00554
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-94
[CAN]CAN SYSTEM (TYPE 5)
Revision: September 2005 2006 Frontier
Check Sheet UKS00555
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5765E
CAN SYSTEM (TYPE 5)
LAN-95
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7064E
LAN-96
[CAN]CAN SYSTEM (TYPE 5)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5766E
PKIC5516E
CAN SYSTEM (TYPE 5)
LAN-97
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5767E
PKIC5517E
LAN-98
[CAN]CAN SYSTEM (TYPE 5)
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5768E
PKIC5518E
CAN SYSTEM (TYPE 5)
LAN-99
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5769E
PKIC5519E
LAN-100
[CAN]CAN SYSTEM (TYPE 5)
Revision: September 2005 2006 Frontier
Case 5Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5770E
PKIC5520E
CAN SYSTEM (TYPE 5)
LAN-101
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5771E
PKIC5521E
LAN-102
[CAN]CAN SYSTEM (TYPE 5)
Revision: September 2005 2006 Frontier
Case 7Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5772E
PKIC5522E
CAN SYSTEM (TYPE 5)
LAN-103
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 8Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5773E
PKIC5523E
LAN-104
[CAN]CAN SYSTEM (TYPE 5)
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 10Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5774E
PKIC5524E
PKIC5775E
CAN SYSTEM (TYPE 5)
LAN-105
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 11Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 12Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5776E
PKIC5777E
LAN-106
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 6) PFP:23710
Component Parts and Harness Connector Location UKS00556
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS00557
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS00558
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 6)
LAN-107
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS00559
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5884E
LAN-108
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
PKIC7064E
CAN SYSTEM (TYPE 6)
LAN-109
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5885E
PKIC5516E
LAN-110
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5886E
PKIC5517E
CAN SYSTEM (TYPE 6)
LAN-111
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5887E
PKIC5518E
LAN-112
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5888E
PKIC5519E
CAN SYSTEM (TYPE 6)
LAN-113
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5889E
PKIC5520E
LAN-114
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
Case 6Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5890E
PKIC5521E
CAN SYSTEM (TYPE 6)
LAN-115
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5891E
PKIC5522E
LAN-116
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
Case 8Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5892E
PKIC5523E
CAN SYSTEM (TYPE 6)
LAN-117
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 10Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5893E
PKIC5524E
PKIC5894E
LAN-118
[CAN]CAN SYSTEM (TYPE 6)
Revision: September 2005 2006 Frontier
Case 11Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 12Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5895E
PKIC5896E
CAN SYSTEM (TYPE 7)
LAN-119
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 7) PFP:23710
Component Parts and Harness Connector Location UKS0055A
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055B
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0055C
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-120
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
Check Sheet UKS0055D
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5897E
CAN SYSTEM (TYPE 7)
LAN-121
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7072E
LAN-122
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5898E
PKIC5595E
CAN SYSTEM (TYPE 7)
LAN-123
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5899E
PKIC5596E
LAN-124
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5900E
PKIC5597E
CAN SYSTEM (TYPE 7)
LAN-125
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5901E
PKIC5598E
LAN-126
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
Case 5Check differential lock control unit circuit. Refer to LAN-247, "Differential Lock Control Unit Circuit Inspection" .
PKIC5902E
PKIC5599E
CAN SYSTEM (TYPE 7)
LAN-127
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5903E
PKIC5600E
LAN-128
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
Case 7Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5904E
PKIC5601E
CAN SYSTEM (TYPE 7)
LAN-129
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 8Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5905E
PKIC5602E
LAN-130
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
Case 9Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5906E
PKIC5603E
CAN SYSTEM (TYPE 7)
LAN-131
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 10Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 11Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5907E
PKIC5604E
PKIC5908E
LAN-132
[CAN]CAN SYSTEM (TYPE 7)
Revision: September 2005 2006 Frontier
Case 12Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 13Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5909E
PKIC5910E
CAN SYSTEM (TYPE 8)
LAN-133
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 8) PFP:23710
Component Parts and Harness Connector Location UKS0055E
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055F
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0055G
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-134
[CAN]CAN SYSTEM (TYPE 8)
Revision: September 2005 2006 Frontier
Check Sheet UKS0055H
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5778E
CAN SYSTEM (TYPE 8)
LAN-135
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7069E
LAN-136
[CAN]CAN SYSTEM (TYPE 8)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5779E
PKIC5535E
CAN SYSTEM (TYPE 8)
LAN-137
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5780E
PKIC5536E
LAN-138
[CAN]CAN SYSTEM (TYPE 8)
Revision: September 2005 2006 Frontier
Case 3Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5781E
PKIC5537E
CAN SYSTEM (TYPE 8)
LAN-139
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5782E
PKIC5538E
LAN-140
[CAN]CAN SYSTEM (TYPE 8)
Revision: September 2005 2006 Frontier
Case 5Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5783E
PKIC5539E
CAN SYSTEM (TYPE 8)
LAN-141
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5784E
PKIC5540E
LAN-142
[CAN]CAN SYSTEM (TYPE 8)
Revision: September 2005 2006 Frontier
Case 7Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5785E
PKIC5541E
CAN SYSTEM (TYPE 8)
LAN-143
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 8Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 9Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5786E
PKIC5542E
PKIC5787E
LAN-144
[CAN]CAN SYSTEM (TYPE 8)
Revision: September 2005 2006 Frontier
Case 10Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 11Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5788E
PKIC5789E
CAN SYSTEM (TYPE 9)
LAN-145
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 9) PFP:23710
Component Parts and Harness Connector Location UKS0055I
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055J
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0055K
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-146
[CAN]CAN SYSTEM (TYPE 9)
Revision: September 2005 2006 Frontier
Check Sheet UKS0055L
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5790E
CAN SYSTEM (TYPE 9)
LAN-147
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7069E
LAN-148
[CAN]CAN SYSTEM (TYPE 9)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5791E
PKIC5535E
CAN SYSTEM (TYPE 9)
LAN-149
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5792E
PKIC5536E
LAN-150
[CAN]CAN SYSTEM (TYPE 9)
Revision: September 2005 2006 Frontier
Case 3Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5793E
PKIC5537E
CAN SYSTEM (TYPE 9)
LAN-151
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5794E
PKIC5538E
LAN-152
[CAN]CAN SYSTEM (TYPE 9)
Revision: September 2005 2006 Frontier
Case 5Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5795E
PKIC5539E
CAN SYSTEM (TYPE 9)
LAN-153
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5796E
PKIC5540E
LAN-154
[CAN]CAN SYSTEM (TYPE 9)
Revision: September 2005 2006 Frontier
Case 7Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5797E
PKIC5541E
CAN SYSTEM (TYPE 9)
LAN-155
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 8Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 9Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5798E
PKIC5542E
PKIC5799E
LAN-156
[CAN]CAN SYSTEM (TYPE 9)
Revision: September 2005 2006 Frontier
Case 10Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 11Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5800E
PKIC5801E
CAN SYSTEM (TYPE 10)
LAN-157
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 10) PFP:23710
Component Parts and Harness Connector Location UKS0055M
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055N
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0055O
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-158
[CAN]CAN SYSTEM (TYPE 10)
Revision: September 2005 2006 Frontier
Check Sheet UKS0055P
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5911E
CAN SYSTEM (TYPE 10)
LAN-159
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7070E
LAN-160
[CAN]CAN SYSTEM (TYPE 10)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5912E
PKIC5605E
CAN SYSTEM (TYPE 10)
LAN-161
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5913E
PKIC5606E
LAN-162
[CAN]CAN SYSTEM (TYPE 10)
Revision: September 2005 2006 Frontier
Case 3Check differential lock control unit circuit. Refer to LAN-247, "Differential Lock Control Unit Circuit Inspection" .
PKIC5914E
PKIC5607E
CAN SYSTEM (TYPE 10)
LAN-163
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5915E
PKIC5608E
LAN-164
[CAN]CAN SYSTEM (TYPE 10)
Revision: September 2005 2006 Frontier
Case 5Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5916E
PKIC5609E
CAN SYSTEM (TYPE 10)
LAN-165
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5917E
PKIC5610E
LAN-166
[CAN]CAN SYSTEM (TYPE 10)
Revision: September 2005 2006 Frontier
Case 7Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5918E
PKIC5611E
CAN SYSTEM (TYPE 10)
LAN-167
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 8Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5919E
PKIC5612E
LAN-168
[CAN]CAN SYSTEM (TYPE 10)
Revision: September 2005 2006 Frontier
Case 9Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 10Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5920E
PKIC5613E
PKIC5921E
CAN SYSTEM (TYPE 10)
LAN-169
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 11Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 12Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5922E
PKIC5923E
LAN-170
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 11) PFP:23710
Component Parts and Harness Connector Location UKS0055Q
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055R
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0055S
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 11)
LAN-171
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS0055T
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5829E
LAN-172
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
PKIC7066E
CAN SYSTEM (TYPE 11)
LAN-173
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5830E
PKIC5562E
LAN-174
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5831E
PKIC5563E
CAN SYSTEM (TYPE 11)
LAN-175
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5832E
PKIC5564E
LAN-176
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5833E
PKIC5565E
CAN SYSTEM (TYPE 11)
LAN-177
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5834E
PKIC5566E
LAN-178
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
Case 6Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5835E
PKIC5567E
CAN SYSTEM (TYPE 11)
LAN-179
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5836E
PKIC5568E
LAN-180
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
Case 8Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5837E
PKIC5569E
CAN SYSTEM (TYPE 11)
LAN-181
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5838E
PKIC5570E
LAN-182
[CAN]CAN SYSTEM (TYPE 11)
Revision: September 2005 2006 Frontier
Case 10Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 11Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5839E
PKIC5571E
PKIC5840E
CAN SYSTEM (TYPE 11)
LAN-183
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 12Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 13Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5841E
PKIC5842E
LAN-184
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 12) PFP:23710
Component Parts and Harness Connector Location UKS0055U
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055V
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS0055W
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 12)
LAN-185
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS0055X
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5843E
LAN-186
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
PKIC7066E
CAN SYSTEM (TYPE 12)
LAN-187
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5844E
PKIC5562E
LAN-188
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5845E
PKIC5563E
CAN SYSTEM (TYPE 12)
LAN-189
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5846E
PKIC5564E
LAN-190
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5847E
PKIC5565E
CAN SYSTEM (TYPE 12)
LAN-191
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5848E
PKIC5566E
LAN-192
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
Case 6Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5849E
PKIC5567E
CAN SYSTEM (TYPE 12)
LAN-193
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5850E
PKIC5568E
LAN-194
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
Case 8Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5851E
PKIC5569E
CAN SYSTEM (TYPE 12)
LAN-195
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5852E
PKIC5570E
LAN-196
[CAN]CAN SYSTEM (TYPE 12)
Revision: September 2005 2006 Frontier
Case 10Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 11Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5853E
PKIC5571E
PKIC5854E
CAN SYSTEM (TYPE 12)
LAN-197
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 12Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 13Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5855E
PKIC5856E
LAN-198
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 13) PFP:23710
Component Parts and Harness Connector Location UKS0055Y
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS0055Z
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS00560
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 13)
LAN-199
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS00561
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5924E
LAN-200
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
PKIC7071E
CAN SYSTEM (TYPE 13)
LAN-201
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5925E
PKIC5614E
LAN-202
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5926E
PKIC5615E
CAN SYSTEM (TYPE 13)
LAN-203
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5927E
PKIC5616E
LAN-204
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5928E
PKIC5617E
CAN SYSTEM (TYPE 13)
LAN-205
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check differential lock control unit circuit. Refer to LAN-247, "Differential Lock Control Unit Circuit Inspection" .
PKIC5929E
PKIC5618E
LAN-206
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
Case 6Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5930E
PKIC5619E
CAN SYSTEM (TYPE 13)
LAN-207
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5931E
PKIC5620E
LAN-208
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
Case 8Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5932E
PKIC5621E
CAN SYSTEM (TYPE 13)
LAN-209
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5933E
PKIC5622E
LAN-210
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
Case 10Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5934E
PKIC5623E
CAN SYSTEM (TYPE 13)
LAN-211
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 11Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 12Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5935E
PKIC5624E
PKIC5936E
LAN-212
[CAN]CAN SYSTEM (TYPE 13)
Revision: September 2005 2006 Frontier
Case 13Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 14Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5937E
PKIC5938E
CAN SYSTEM (TYPE 14)
LAN-213
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 14) PFP:23710
Component Parts and Harness Connector Location UKS00562
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS00563
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS00564
Refer to LAN-24, "Wiring Diagram — CAN —" .
LAN-214
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
Check Sheet UKS00565
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5673E
CAN SYSTEM (TYPE 14)
LAN-215
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
PKIC7066E
LAN-216
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5674E
PKIC5572E
CAN SYSTEM (TYPE 14)
LAN-217
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5675E
PKIC5573E
LAN-218
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5676E
PKIC5574E
CAN SYSTEM (TYPE 14)
LAN-219
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5677E
PKIC5575E
LAN-220
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
Case 5Check steering angle sensor circuit. Refer to LAN-248, "Steering Angle Sensor Circuit Inspection" .
PKIC5678E
PKIC5576E
CAN SYSTEM (TYPE 14)
LAN-221
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 6Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5679E
PKIC5577E
LAN-222
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
Case 7Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5680E
PKIC5578E
CAN SYSTEM (TYPE 14)
LAN-223
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 8Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5681E
PKIC5579E
LAN-224
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
Case 9Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5682E
PKIC5580E
CAN SYSTEM (TYPE 14)
LAN-225
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 10Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5683E
PKIC5581E
LAN-226
[CAN]CAN SYSTEM (TYPE 14)
Revision: September 2005 2006 Frontier
Case 11Check IPDM E/R circuit. Refer to LAN-252, "IPDM E/R Ignition Relay Circuit Inspection" .
Case 12Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5684E
PKIC5582E
PKIC5685E
CAN SYSTEM (TYPE 14)
LAN-227
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 13Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 14Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5686E
PKIC5687E
LAN-228
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
CAN SYSTEM (TYPE 15) PFP:23710
Component Parts and Harness Connector Location UKS00566
Refer to LAN-22, "Component Parts and Harness Connector Location" .
Schematic UKS00567
Refer to LAN-23, "Schematic" .
Wiring Diagram — CAN — UKS00568
Refer to LAN-24, "Wiring Diagram — CAN —" .
CAN SYSTEM (TYPE 15)
LAN-229
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Check Sheet UKS00569
NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIC5857E
LAN-230
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
PKIC7071E
CAN SYSTEM (TYPE 15)
LAN-231
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
CHECK SHEET RESULTS (EXAMPLE)NOTE:If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1Check harness between TCM and data link connector. Refer to LAN-244, "Inspection Between TCM and DataLink Connector Circuit" .
PKIC5858E
PKIC5583E
LAN-232
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
Case 2Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-245, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC5859E
PKIC5584E
CAN SYSTEM (TYPE 15)
LAN-233
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 3Check ECM circuit. Refer to LAN-246, "ECM Circuit Inspection" .
PKIC5860E
PKIC5585E
LAN-234
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
Case 4Check TCM circuit. Refer to LAN-247, "TCM Circuit Inspection" .
PKIC5861E
PKIC5586E
CAN SYSTEM (TYPE 15)
LAN-235
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 5Check differential lock control unit circuit. Refer to LAN-247, "Differential Lock Control Unit Circuit Inspection" .
PKIC5862E
PKIC5587E
LAN-236
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
Case 6Check steering angle sensor circuit. Refer to LAN-248, "Steering Angle Sensor Circuit Inspection" .
PKIC5863E
PKIC5588E
CAN SYSTEM (TYPE 15)
LAN-237
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 7Check data link connector circuit. Refer to LAN-248, "Data Link Connector Circuit Inspection" .
PKIC5864E
PKIC5589E
LAN-238
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
Case 8Check BCM circuit. Refer to LAN-249, "BCM Circuit Inspection" .
PKIC5865E
PKIC5590E
CAN SYSTEM (TYPE 15)
LAN-239
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 9Check combination meter circuit. Refer to LAN-249, "Combination Meter Circuit Inspection" .
PKIC5866E
PKIC5591E
LAN-240
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
Case 10Check transfer control unit circuit. Refer to LAN-250, "Transfer Control Unit Circuit Inspection" .
PKIC5867E
PKIC5592E
CAN SYSTEM (TYPE 15)
LAN-241
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 11Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-250, "ABS Actuator and Electric Unit(Control Unit) Circuit Inspection" .
PKIC5868E
PKIC5593E
LAN-242
[CAN]CAN SYSTEM (TYPE 15)
Revision: September 2005 2006 Frontier
Case 12Check IPDM E/R circuit. Refer to LAN-251, "IPDM E/R Circuit Inspection" .
Case 13Check CAN communication circuit. Refer to LAN-251, "CAN Communication Circuit Inspection" .
PKIC5869E
PKIC5594E
PKIC5870E
CAN SYSTEM (TYPE 15)
LAN-243
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
Case 14Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
Case 15Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-252, "IPDM E/R Ignition RelayCircuit Inspection" .
PKIC5871E
PKIC5872E
LAN-244
[CAN]TROUBLE DIAGNOSIS FOR SYSTEM
Revision: September 2005 2006 Frontier
TROUBLE DIAGNOSIS FOR SYSTEM PFP:00000
Inspection Between TCM and Data Link Connector Circuit UKS0052L
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check following terminals and connectors for damage, bend and loose connection (connector side and
harness side).– Harness connector F14– Harness connector E5– Harness connector E152– Harness connector M31OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector and harness connector F14.2. Check continuity between A/T assembly harness connector and
harness connector.
OK or NGOK >> GO TO 3.NG >> Repair harness.
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector E152.2. Check continuity between harness connector and SMJ harness
connector.
OK or NGOK >> GO TO 4.NG >> Repair harness.
A/T assembly connector Harness connectorContinuity
Connector Terminal Connector Terminal
F93
F142 Yes
8 3 Yes
SKIB2808E
Harness connector SMJ harness connectorContinuity
Connector Terminal Connector Terminal
E52
E15252G Yes
3 51G Yes
SKIB2809E
TROUBLE DIAGNOSIS FOR SYSTEM
LAN-245
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
4. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between SMJ harness connector and data link con-nector.
OK or NGOK >> Connect all the connectors and diagnose again. Refer to
LAN-5, "TROUBLE DIAGNOSES WORK FLOW" .NG >> Repair harness.
Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit UKS0052M
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check following terminals and connectors for damage, bend and loose connection (connector side and
harness side).– Harness connector M91– Harness connector E26OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector M91.2. Check continuity between data link connector and harness con-
nector.
OK or NGOK >> GO TO 3.NG >> Repair harness.
SMJ harness connector Data link connectorContinuity
Connector Terminal Connector Terminal
M3152G
M226 Yes
51G 14 Yes
SKIB2834E
Data link connector Harness connectorContinuity
Connector Terminal Connector Terminal
M226
M9111 Yes
14 10 Yes
SKIB2812E
LAN-246
[CAN]TROUBLE DIAGNOSIS FOR SYSTEM
Revision: September 2005 2006 Frontier
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.2. Check continuity between harness connector and ABS actuator
and electric unit (control unit) harness connector.
OK or NGOK >> Connect all the connectors and diagnose again. Refer to
LAN-5, "TROUBLE DIAGNOSES WORK FLOW" .NG >> Repair harness.
ECM Circuit Inspection UKS0052N
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check following terminals and connectors for damage, bend and loose connection (control module side
and harness side).– M/T model• ECM connector• Harness connector E152• Harness connector M31– A/T model• ECM connector• Harness connector E2• Harness connector F32OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.2. Check resistance between ECM harness connector terminals.
OK or NGOK >> Replace ECM.NG >> M/T model
– Repair harness between ECM and data link connec-tor.
A/T model– Repair harness between ECM and A/T assembly.
Harness connectorABS actuator and electric unit
(control unit) connector Continuity
Connector Terminal Connector Terminal
E2611
E12511 Yes
10 15 Yes
SKIB2813E
ECM connector TerminalResistance(Approx.)
E16 94 86 108 – 132 Ω
PKIA9592E
TROUBLE DIAGNOSIS FOR SYSTEM
LAN-247
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
TCM Circuit Inspection UKS0052O
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of A/T assembly for damage, bend and loose connection (control module
side and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector.2. Check resistance between A/T assembly harness connector ter-
minals.
OK or NGOK >> Replace control valve with TCM.NG >> Repair harness between A/T assembly and harness
connector F14.
Differential Lock Control Unit Circuit Inspection UKS0052P
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of differential lock control unit for damage, bend and loose connection
(control unit side and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect differential lock control unit connector.2. Check resistance between differential lock control unit harness
connector terminals.
OK or NGOK >> Replace differential lock control unit.NG >> Repair harness between differential lock control unit and
data link connector.
A/T assemblyconnector
TerminalResistance(Approx.)
F9 3 8 54 – 66 Ω
SKIA6866E
Differential lock control unit con-
nectorTerminal
Resistance(Approx.)
M70 5 4 54 – 66 Ω
PKIA9748E
LAN-248
[CAN]TROUBLE DIAGNOSIS FOR SYSTEM
Revision: September 2005 2006 Frontier
Steering Angle Sensor Circuit Inspection UKS0052Q
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor
side and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering angle sensor connector.2. Check resistance between steering angle sensor harness con-
nector terminals.
OK or NGOK >> Replace steering angle sensor.NG >> Repair harness between steering angle sensor and data
link connector.
Data Link Connector Circuit Inspection UKS0052R
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check data link connector and terminals for damage, bend and loose connection (connector side and har-
ness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector terminals.
OK or NGOK >> Diagnose again. Refer to LAN-5, "TROUBLE DIAG-
NOSES WORK FLOW" .NG >> Repair harness between data link connector and BCM.
Steering angle sensor connector
TerminalResistance(Approx.)
M47 4 5 54 – 66 Ω
PKIA9864E
Data linkconnector
TerminalResistance(Approx.)
M22 6 14 54 – 66 Ω
SKIA6868E
TROUBLE DIAGNOSIS FOR SYSTEM
LAN-249
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
BCM Circuit Inspection UKS0052S
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and
harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect BCM connector.2. Check resistance between BCM harness connector terminals.
OK or NGOK >> Replace BCM. Refer to BCS-26, "Removal and Installa-
tion" .NG >> Repair harness between BCM and data link connector.
Combination Meter Circuit Inspection UKS0052T
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of combination meter for damage, bend and loose connection (meter side
and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect combination meter connector.2. Check resistance between combination meter harness connec-
tor terminals.
OK or NGOK >> Replace combination meter.NG >> Repair harness between combination meter and data
link connector.
BCM connector TerminalResistance(Approx.)
M18 39 40 54 – 66 Ω
SKIA6869E
Combination meter connector
TerminalResistance(Approx.)
M24 12 11 54 – 66 Ω
PKIA6837E
LAN-250
[CAN]TROUBLE DIAGNOSIS FOR SYSTEM
Revision: September 2005 2006 Frontier
Transfer Control Unit Circuit Inspection UKS0052U
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of transfer control unit for damage, bend and loose connection (control
unit side and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect transfer control unit connector.2. Check resistance between transfer control unit harness connec-
tor terminals.
OK or NGOK >> Replace transfer control unit.NG >> Repair harness between transfer control unit and data
link connector.
ABS Actuator and Electric Unit (Control Unit) Circuit Inspection UKS0052V
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose
connection (control unit side and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.2. Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector terminals.
OK or NGOK >> Replace ABS actuator and electric unit (control unit).NG >> Repair harness between ABS actuator and electric unit
(control unit) and IPDM E/R.
Transfer control unit connector
TerminalResistance(Approx.)
M152 1 2 54 – 66 Ω
PKIC1656E
ABS actuator and electric unit (con-
trol unit) connectorTerminal
Resistance(Approx.)
E125 11 15 54 – 66 Ω
SKIA6872E
TROUBLE DIAGNOSIS FOR SYSTEM
LAN-251
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
IPDM E/R Circuit Inspection UKS0052W
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Check terminals and connector of IPDM E/R for damage, bend and loose connection (control module side
and harness side).OK or NGOK >> GO TO 2.NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.2. Check resistance between IPDM E/R harness connector termi-
nals.
OK or NGOK >> Replace IPDM E/R.NG >> Repair harness between IPDM E/R and ABS actuator
and electric unit (control unit).
CAN Communication Circuit Inspection UKS0052X
1. CHECK CONNECTOR
1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Disconnect the harness connector for each unit on the CAN network and check terminals for deformation,
disconnection, looseness or damage.OK or NGOK >> GO TO 2.NG >> Repair terminal or connector as necessary.
2. CHECK HARNESS FOR SHORT CIRCUIT
With all module and control unit connectors disconnected, checkcontinuity between data link connector terminals.
OK or NGOK >> GO TO 3.NG >> Repair harness.
Replace harness if shielded lines are used for theharness.
IPDM E/R connector
TerminalResistance(Approx.)
E122 39 40 108 – 132 Ω
PKIA8141E
Data linkconnector
Terminal Continuity
M22 6 14 No
SKIA6868E
LAN-252
[CAN]TROUBLE DIAGNOSIS FOR SYSTEM
Revision: September 2005 2006 Frontier
3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector terminals and ground.
OK or NGOK >> GO TO 4.NG >> Repair harness.
Replace harness if shielded lines are used for theharness.
4. ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
1. Remove ECM and IPDM E/R from vehicle.2. Check resistance between ECM terminals.
3. Check resistance between IPDM E/R terminals.
OK or NGOK >> GO TO 5.NG >> Replace ECM and/or IPDM E/R.
5. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.2. Connect all connectors, and then make sure that the symptom is reproduced.Check resultsReproduced>>GO TO 6.Not reproduced>>Refer to LAN-13, "Example of Filling in Check Sheet When Initial Conditions Are Not
Reproduced" .
6. UNIT REPRODUCIBILITY INSPECTION
Perform the following procedure for each unit on the CAN network, and then perform reproducibility test.1. Turn ignition switch OFF.2. Disconnect the battery cable from the negative terminal.3. Disconnect the unit connector.4. Connect the battery cable to the negative terminal.5. Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced.
NOTE:Malfunction (related to a unit that the connector is disconnected) is reproduced. Do not confuse the mal-function with the symptom filled in the column of “Symptom” on the check sheet.
Inspection resultsReproduced>>Connect the disconnected connector. Check other units applying the above procedure.Not reproduced>>Replace the unit that the connector is disconnected.
IPDM E/R Ignition Relay Circuit Inspection UKS0052Y
Check the following. If no malfunction is found, replace the IPDM E/R.
Data linkconnector
Terminal
Ground
Continuity
M226 No
14 No
PKIA9872E
Terminal Resistance (Approx.)
94 86 108 – 132 Ω
Terminal Resistance (Approx.)
39 40 108 – 132 Ω
LKIA0037E
TROUBLE DIAGNOSIS FOR SYSTEM
LAN-253
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision: September 2005 2006 Frontier
IPDM E/R power supply circuit. Refer to PG-31, "IPDM E/R Power/Ground Circuit Inspection" . Ignition power supply circuit. Refer to PG-14, "IGNITION POWER SUPPLY — IGNITION SW. IN ON
AND/OR START" .
LAN-254
[CAN]TROUBLE DIAGNOSIS FOR SYSTEM
Revision: September 2005 2006 Frontier